notes_estom/Python/matplotlab/gallery/userdemo/annotate_simple04.md

# 注释Simple04

![注释Simple04示例](https://matplotlib.org/_images/sphx_glr_annotate_simple04_001.png)

```python
import matplotlib.pyplot as plt


fig, ax = plt.subplots(figsize=(3, 3))

ann = ax.annotate("Test",
                  xy=(0.2, 0.2), xycoords='data',
                  xytext=(0.8, 0.8), textcoords='data',
                  size=20, va="center", ha="center",
                  bbox=dict(boxstyle="round4", fc="w"),
                  arrowprops=dict(arrowstyle="-|>",
                                  connectionstyle="arc3,rad=0.2",
                                  relpos=(0., 0.),
                                  fc="w"),
                  )

ann = ax.annotate("Test",
                  xy=(0.2, 0.2), xycoords='data',
                  xytext=(0.8, 0.8), textcoords='data',
                  size=20, va="center", ha="center",
                  bbox=dict(boxstyle="round4", fc="w"),
                  arrowprops=dict(arrowstyle="-|>",
                                  connectionstyle="arc3,rad=-0.2",
                                  relpos=(1., 0.),
                                  fc="w"),
                  )

plt.show()
```

## 下载这个示例
            
- [下载python源码: annotate_simple04.py](https://matplotlib.org/_downloads/annotate_simple04.py)
- [下载Jupyter notebook: annotate_simple04.ipynb](https://matplotlib.org/_downloads/annotate_simple04.ipynb)